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144149590 = 25135871889
BaseRepresentation
bin10001001011110…
…00110001010110
3101001020120001201
420211320301112
5243400241330
622145343114
73400152124
oct1045706126
9331216051
10144149590
11744067a2
1240337a9a
1323b31020
1415204914
15c9c5eca
hex8978c56

144149590 has 32 divisors (see below), whose sum is σ = 280052640. Its totient is φ = 53105664.

The previous prime is 144149569. The next prime is 144149617. The reversal of 144149590 is 95941441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75366 + ... + 77254.

It is an arithmetic number, because the mean of its divisors is an integer number (8751645).

Almost surely, 2144149590 is an apocalyptic number.

144149590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144149590 is a deficient number, since it is larger than the sum of its proper divisors (135903050).

144149590 is a wasteful number, since it uses less digits than its factorization.

144149590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 144149590 is about 12006.2312987881. The cubic root of 144149590 is about 524.3297145046.

The spelling of 144149590 in words is "one hundred forty-four million, one hundred forty-nine thousand, five hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 587 1174 1889 2935 3778 5870 7631 9445 15262 18890 24557 38155 49114 76310 122785 245570 1108843 2217686 5544215 11088430 14414959 28829918 72074795 144149590